【摘要】 该文采用激光浮区熔化自调节（诱导）法，根据Ｙ２ＢａＣｕＯ５－ＹＢａ２Ｃｕ３－Ｏ７－ｘ伪二元相图，从激光浮区直接生长出具有ＹＢａ２Ｃｕ３Ｏ７－ｘ（１２３）织构相的晶体棒．实验结果表明：ＹＢａ２Ｃｕ３Ｏ７－ｘ织构相的生长方向垂直Ｃ轴方向。在５５０℃、４０小时充氧处理后，交流磁化率测得Ｔｃ＝９１．２Ｋ。同时，对晶体棒的显微组织进行了观察．更多还原

【Abstract】 With a laser floating zone leveling technique (or laser floating zone travelling solyent technique), a crystal rod with textured YBa2Cu3O7-x (123) phase was directly grown from laser-heated molten zone first time, according to a pseudo-binary diagram of YBCO compounds.Experimental results indicate that orientation of textured 123 phase is perpendicular to the C-axis and that the Tc onset value of the crystal grown is 91. 2K, after annealing at 550℃ for 40hr in flowing oxygen.Meanwhile, morphologles and microstructures of textured 123 phase were observed.更多还原